The only way to build enough oil pressure to damage something is for the
oil pressure regulator built into the oil pump to fail. Normally this is a
problem when the engine is first started. Does your gauge read unusually high
at high engine speed?
The most likely failure is the oil line going to the distributor. My second
choice would be the gauge line or sender (I don't remember what it has for
sure). The third would be the oil filter being loose or over tightened.
Please let us know what you find.
keith
In a message dated 4/10/2009 11:18:13 P.M. Pacific Daylight Time,
roadster2@schroeder-family.us writes:
Another possibility is the hose going to the distributor.
Best regards,
Fred Schroeder
roadster2@schroeder-family.us
Home page: http://schroeder-family.us
NRA Life Member
Behold the superfluous. They are always sick. They
vomit their gall and call it a newspaper.
Friedrich Wilhelm Nietzsche 1844-1900
----- Original Message -----
From: nmleeds@mindspring.com
To: datsun-roadsters@autox.team.net
Sent: Friday, April 10, 2009 4:28 PM
Subject: [Roadsters] 6700 RPM's 5th Gear and ooh noo
I probably won't have happened on my morning commute if it weren't for the
260Z. I know that's no excuse. But I've seen him before, weaving through
the
heavy traffic and then taking a death (and speeding ticket) defying leap
for
it when traffic gets light after the airport turnoff. And my wife took her
car to work today, so I was in the Datsun and . . .
listmates, you'll be happy to hear that by b-cam SU '69 2000 blew his socks
off until, at 6700 RPM's the oil (20-50W) pressure got to be too much and I
blew a great big oil leak (I haven't cleaned up the mess so I can't report
what blew) although there is no signs of any internal engine problems.
There are two possible lessons take away from this: 1) I should learn to
drive more cautiously 2) I should put something on the engine to blead off
extra oil pressure.
Since lesson 1 is a new trick this old (actually mid-30's) dog isn't likely
to learn, I thought I'd ask if anyone had any suggestions for what to do
control oil pressure under heavy load.
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